James Turner wrote:
>> I suspect this should be a pref - either the local cockpit sounds are  
>> associated with the aircraft model (realistic operation) or they are  
>> associated with the view position (unrealistic but useful if you like  
>> switching to an outside view but don't want to miss a bit of ATC or an  
>> alert)

On 09/22/09 02:10, Erik Hofman wrote:
 
> Why was I already suspecting it would end up like this? :)

Let's discuss the realistic options first, and then
see to what extent we can and/or should implement
unrealistic options.

1) If you are inside the cockpit and have the NAV
 radio tuned up, you should be able to hear Morse
 code IDENT signals.  Similarly if you have the 
 Tower frequency tuned up, you should be able to
 hear chatter appropriate to that frequency.  If 
 you have the Approach frequency tuned up, you 
 should hear chatter appropriate to that frequency.

2) If you are standing outside the aircraft, the
 engine sound will be 20 or 30 dB louder, while the
 radio sounds will be 20 or 30 or 40 dB quieter, i.e.
 completely inaudible.

3) If you are in the Tower, partaking of the "Tower 
 View" you should hear chatter appropriate to the 
 Tower frequency.  It is verrry unlikely that Tower 
 has any approach frequencies or navaid frequencies 
 tuned up.

 If the Tower job is divided into multiple sectors,
 as it generally is at large busy fields, that
 introduces additional complexity.  There are ways
 of dealing with this, which we can discuss later
 if anybody is interested.

4a) If you are in a chase plane, partaking of the
 "Chase View", you might hear chatter appropriate
 to whatever frequencies are tuned up on the chase
 plane's radios ... not the chased plane's radios.

4b) However, it would not be unreasonable to posit 
 that the chase plane would have tuned up the 
 same frequencies as the chased plane.  Call it 
 a coincidence if you wish, but not a completely
 unreasonable coincidence.

 Note that in this scenario, and indeed all of the
 scenarios considered here, the radio sounds do not
 exhibit any Doppler shift, since the observers are
 always stationary relative to the relevant radio
 receiver, even if they are not stationary relative 
 to the aircraft we are observing.

4c) If somebody wants to flesh out the chase plane
 to the point where it has its own radios, distinct
 from the chased plane's radios, that's fine with
 me ... but it might be a whole lot of work for
 relatively little value to typical users. I reckon 
 this should be rather low on the priority list.

==================

Just saying "let it be a preference" available in
"unrealistic mode" is not a panacea.  For starters, 
there are infinitely more unrealistic behaviors than
there are realistic behaviors, so deciding what to
implement is sure to be hard, and then implementing
it is likely to be hard also.  Furthermore, it raises 
all sorts of user-interface issues, since it is not 
even obvious how the user could _express_ such 
preferences in any natural way.

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